Method and system for wireless battery charging utilizing ultrasonic transducer array based beamforming
First Claim
1. A method of processing signals, the method comprising:
- in an ultrasound power transmitter device comprising a transmit ultrasonic transducer array having a plurality of transmit ultrasonic transducers;
activating a set of said plurality of transmit ultrasonic transducers in a proximity of an ultrasound power receiver associated with a first electronic device and an ultrasound power receiver associated with a second electronic device; and
transmitting via said activated set of said plurality of transmit ultrasonic transducers, ultrasound signals comprising ultrasound energy to said ultrasound power receivers, wherein said ultrasound energy is utilized by each ultrasound power receiver to charge an electrical battery that powers the electronic device associated with the ultrasound power receiver, wherein the ultrasound signals transmitted from the power transmitter device to the first and second devices further comprise device pairing information to pair the first and second electronic devices to establish communication between the first and second electronic devices.
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Accused Products
Abstract
An ultrasound power transmitter comprising a transmit ultrasonic transducer array has a plurality of transmit ultrasonic transducers. The ultrasound power transmitter activates a set of transmit ultrasonic transducers in close proximity of an electronic device to be arranged to beam ultrasound energy to the electronic device. Alignment magnets of the ultrasound power transmitter are aligned with corresponding alignment magnets of the electronic device to manage the ultrasound beaming. The ultrasound energy may be converted into electric power to charge the battery of the electronic device. Feedbacks may be provided by the electronic device to the ultrasound power transmitter to increase power transmission efficiency. The ultrasound power transmitter may pair the electronic device with other different electronic devices utilizing ultrasonic signals. A spacer with good ultrasound power transmission properties may be located between the ultrasound power transmitter and an ultrasound power receiver of an intended electronic device to enhance power transmission.
62 Citations
22 Claims
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1. A method of processing signals, the method comprising:
in an ultrasound power transmitter device comprising a transmit ultrasonic transducer array having a plurality of transmit ultrasonic transducers; activating a set of said plurality of transmit ultrasonic transducers in a proximity of an ultrasound power receiver associated with a first electronic device and an ultrasound power receiver associated with a second electronic device; and transmitting via said activated set of said plurality of transmit ultrasonic transducers, ultrasound signals comprising ultrasound energy to said ultrasound power receivers, wherein said ultrasound energy is utilized by each ultrasound power receiver to charge an electrical battery that powers the electronic device associated with the ultrasound power receiver, wherein the ultrasound signals transmitted from the power transmitter device to the first and second devices further comprise device pairing information to pair the first and second electronic devices to establish communication between the first and second electronic devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An ultrasound power transmitter device, comprising:
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one or more processors and circuits; and a transmit ultrasonic transducer array having a plurality of transmit ultrasonic transducers, the ultrasound power transmitter device configured to; activate a set of said plurality of transmit ultrasonic transducers in a proximity of an ultrasound power receiver associated with a first electronic device and an ultrasound power receiver associated with a second electronic device; and transmit, via said activated set of said plurality of transmit ultrasonic transducers, ultrasound signals comprising ultrasound energy to said ultrasound power receivers, wherein said ultrasound energy is utilized by each ultrasound power receiver to charge an electrical battery of the electronic device associated with the ultrasound power receiver, wherein the ultrasound signals transmitted from the power transmitter device to the first and second devices further comprise device pairing information to pair the first and second electronic devices to establish communication between the first device and the second device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification